电弧喷涂Zn/Al伪合金涂层耐蚀性能研究  

Corrosion Resistance of Arc-Sprayed Pseudo Zn-Al Alloy Coating

作　　者：李秉忠[1] 王昌辉 董志红[1] 马宝生 张三平[1] 李朋[1] 

机构地区：[1]武汉材料保护研究所,湖北武汉430030 [2]新兴集团股份有限公司二铸管厂,河北邯郸056300

出　　处：《材料保护》2008年第4期31-32,共2页Materials Protection

摘　　要：在钢构件表面,利用热喷涂技术制备锌、铝和锌铝合金涂层可以对基体达到长效保护的目的。采用电弧喷涂装制成功制备出了锌铝伪合金镀层,通过中性盐雾试验、扫描电镜(SEM)等手段研究了其结合强度、耐蚀性能并与纯锌、铝涂层进行了比较分析。结果表明,锌铝伪合金涂层的结合强度和耐蚀性能均优于Zn-15%Al合金涂层。A twin-wire arc-spraying system was performed to prepare pseudo Zn-Al alloy coating so as to improve the corrosion resistance and realize long-term protection of the steel substrate.The adhesion to substrate and corrosion resistance of the pseudo Zn-Al alloy coating were investigated using neutral salt-spraying test and scanning electron microscopy,using Zn and Al coating for a comparison.It was found that the arc sprayed pseudo Zn-Al alloy coating had better corrosion resistance and adhesion to substrate than the Zn-15%A1 alloy coating.

关 键 词：Zn—Al伪合金 电弧喷涂 铸管喷锌 结合强度 耐蚀性能 

分 类 号：TG174.4[金属学及工艺—金属表面处理]